000 00315nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _aNR:62
_bPRO.40
245 0 _aProgress of rubber technology. V 40. 1977
260 _aLondon
_bPRI
_c1977
650 _aRubber chemicals
650 _aSynthetic rubber
942 _cBK
999 _c31900
_d31900